Double-scale pneumatic musical instrument.



g DMJQUARDQ E 'PNEUMATIC MUSICAL INSTRUMENT.

I DQUBLE APPLIUATION FILEDA DEG. 10, 1908.

Patented Sent,

n lill! lili. i...

UNITED STATES Para THOMAS DANQUARD, OF NEW YO-BK, N. Y., ASSIGNQB TQ LUTOPMN@ C9., 0F NEW YORK, N. Y., A CORPORATION OF NEW YQEK.

DOUBLE-SCALE PN'EUMATIC MUSICAL INSTRUMENT.

Io all whom it may concern:

Be itknown that I, THOMAS DANQUARD, a citizen of the United States, residing at Xen' York, in the county of New York and State of N ew York, have invented a new and useful Double-Scale Pneumatic Musical Instrument, of which the following is a speciiication.

This invention relates to that type of musical instruments represented in APatent No. 902,451 granted to me on the 27th day of October, '1908.

The principal objects of this invention are to provide a construction substantially in accordance with said patent in which the necessity of careful construction andf preservation of the long slide valve shall be avoided and to provide a construction in which the channels shall occupy only a small space. is

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which,

Figure 1 is a side view of a tracker showing one form of the present invention applied thereto. Fig. Q is a rear elevation of the same with parts removed. Figs. 3 and 4 are transverse sectional views showing a valve in two different positions. lfig. 5 is a Vl"ra nuutary front view showing one means ol' operating the valves, and Fig. (i is au end View of one of the. valves partly in section.

The invention is shown as applied to an ordinary type of musical instrument having a tracker box 1 0, and tracker 1l provided with two of-note channels l2 and 1? and rolls 14 for a music sheet. A primary pneumat-ic 15 forming a portion of the action is also indicated in Fig. 3. The two sets of note channels are formed in a single or separate tracker and connect with note conduits 16, 17, 18 and 19, the conduits 16 and 17 being connected with the channels 12. A number of pncumatics 15 is provided corresponding with the number of channels in the larger set, and means is provided Whereby the note channels of either set can be connected with the proper number of said pneumatics. For this purpose the tracker box is shown as provided on the back thereof with a stationary blockQO into which the conduits lo, 1S, 1T and 19 pass preferably in that order. These conduits terminate in openings ou the rear surface of said block. Ac-

Speeication of Letters Patent.

Application led December 10, 1908. erial No.

as readily will be understood.

, controlling them.

Patented Sept. t, 15%9. acerca tion condliits 2l and 22, are located 1n two rows one being between the two rows of conduits 16 and 18 and the other between the two rows of conduits 17 and 19. (lne of these series of action conduits is connected wit-l1 all of the actions and the other series with a certain number thereof preferably 65, (hi the face of the block in which these several conduits open are located a series of valvesuz for Each of thesey valvesI 1s shown as provided with four longitudinal passages 26. 'lhus each of the valves crosses two lines of openings in the loar and consequently controls four notes. This is a` convenient number but not essential. '.lhe valves are arranged in a series extending along the back of the block 20 and each one is independent of the others so that any irregularities of the same will be of small amount and the one adected can be removed very readily and replaced without disturb ing the others. `Each one also can be held to its seat independentpf the others so that leakage is avoided or reduced and the operation of the device facilitated. This is considered an important improvement over the use of a single slide valve extending across the tracker box because a metal valve is diiiicult to make true so that it comes to its scat firmly at all points in its length and a wooden one is likely'io get out ot' tru'e'after being made.

Spaocd from the valves is an operating bar or plate having a series of openings 31 in which are locatedI springs 32 one for each valve to normally press the valves toward their rlhis bar also has passages 33 for guide pins 34C on the valves. The bar 30 is held in position by a series of strips 35 fixed with respect to the block. This permits the valves to. be moved along the bar 20 simultaneously and 'at the same time to be seated squarely, :independently of each other. It will be seen that when this har is shifted the valves must follow it and yet if the bar is out of true considerably that will haveno effect on the Way in which the valves come to their sea-ts because each one is held individually by its .spring and is guided individually b its pms 34. lThis bar is shown as operatedY by links r350, arms 36 on a rock-shaft 37, an arm 370, link 88, crank 39, shaft 40 and handle 11, the latter being located withinthe tracker box.

While I have illustrated and described a preferred embodiment of the invention, I am aware that many modifications may be made therein by any person skilled in the art without departing from the scope of my invention as expressed in the claims. Therefore, I do not wish to .be limited to all the features shown but What I do claim is 1. In a pneumatic musical instrument the combination of a plurality of sets of note conduits, a series of separate slide valves for controlling said conduits, each valve having longitudinal channels spaced apart, means for yieldingly pressing each valve to its seat independent of the others, and means for simultaneously operating all the valves.

2. In a pneumatic musical instrument, the combination 'of a tracker box, a tracker having two sets of tracker channels, a block having four rows of conduits opening in one face thereof, the conduits of two rows being connected with one set of tracker channels and theconduits of the other two rows being connected with the other set of tracker channels, two sets of action conduits each opening in said face of the block at points between two of the note conduits, and a series of valves each having means for connecting certain of said action conduits with a note conduit of either series.

In a pneumatic musical instrument, the combination of a plurality of sets'oil note conduits, a series of separate valves for controlling said conduits, means for in dependently yieldingly holding each valve to its seat, a bar connected with all the valves, means for operating the bar, and means foi' guiding each valve with respect lo the bai'.

d. In a pneumatic musical instrument, the combination of a plurality of sets of note conduits, a block into which said note conduits enter, said block having a surface in which the conduits terminate, another set of conduits entering said block and terminating in the-same surface for connecting thefirst named conduits with the action, a series of valves movable along said surface for controlling the connection of the last set of conduits with -any one of the sets of.

note conduits, and means for siinultane- .ously operating all of said valves.

5. In a .pneumatic musical instrument, the combination of a tracker-box, a block `liized to the rear thereof, a plurality of sets of note conduits passing into said block, Y

said Iblock having a surface in which said eaaeee note conduits terminate, channels leading to the action from said block and terminating also in said surface, a plurality of slide valves each having a series of openings always communicatin with saidconduits leading to the action 1n all positions of the valve, and having a series of passages comfmunicatin with said note conduits in different positions of the valve, andimeans for operating said Valves simultaneously.

6. In a pneumatic musical instrumen@ prising a plurality of sets of note conduits opening in a plane, a series of separate movable valves movable along said plane for controlling said conduits, said valves each having passages in position to register with the conduits of either set for opening them in certain positions of the valve, and means for simultaneously operating said valves.

8. In a pneumatic musical instrument, the combination of a tracker box, a stationary block fixed to the rear thereof, a plurality of series of note conduits and a series of action conduits entering said block, a series of valves each having means for controlling the'connection of certain of the note conduits with the corresponding series of action conduits, and a single means for op-A erating said valves. l t

9. In a pneumatic musical instrument, the combination of a tracker box, a plu= rality of sets of note channels, individual conduits connected with said channels, a block fixed on the rear of the tracker box and independent of the -trackers and receiving said conduits, and a series of separate slide valves on the block for closing said conduits and movable to a plurality of positions in each of which it connects only one set of note'channels with the conduits.'

In testimon whereof I have hereunto .set my hand, in t e presence of two subscribing witnesses.

`WM. J. KEELEY, Eown. M. Beerens, Jr. 

